Differences in chemistry and mineral assemblages of Czech and Slovak serpentinite-type rock aggregates for mixed radiation shielding concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F24%3AN0000012" target="_blank" >RIV/26722445:_____/24:N0000012 - isvavai.cz</a>

Výsledek na webu

<a href="https://www2.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=509" target="_blank" >https://www2.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=509</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/AGG.2024.0029" target="_blank" >10.13168/AGG.2024.0029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Differences in chemistry and mineral assemblages of Czech and Slovak serpentinite-type rock aggregates for mixed radiation shielding concrete

Popis výsledku v původním jazyce

The chemistry and mineral assemblages of serpentinite-type rock aggregates used in radiationshielding concrete vary, affecting the material's shielding effectiveness. These variations in aggregates result from different levels of serpentinization, leading to diverse compositions rich in serpentine, antigorite or lizardite minerals. These changes impact the overall radiation attenuation properties, differences in radiation-induced volume expansion, and concrete density. Understanding these distinctions is crucial when concrete mixes are tailored to specific shielding requirements in nuclear facilities. This ensures concrete-optimized radiation protection while maximising structural performance and durability. To identify such differences, a combination of Raman spectroscopy, large-area imaging and mapping using scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDS) and powder X-ray diffraction (PXRD) was performed to compare Czech and Slovak serpentinite rocks which were used in the construction of local nuclear power plants, which are still in operation.

Název v anglickém jazyce

Differences in chemistry and mineral assemblages of Czech and Slovak serpentinite-type rock aggregates for mixed radiation shielding concrete

Popis výsledku anglicky

The chemistry and mineral assemblages of serpentinite-type rock aggregates used in radiationshielding concrete vary, affecting the material's shielding effectiveness. These variations in aggregates result from different levels of serpentinization, leading to diverse compositions rich in serpentine, antigorite or lizardite minerals. These changes impact the overall radiation attenuation properties, differences in radiation-induced volume expansion, and concrete density. Understanding these distinctions is crucial when concrete mixes are tailored to specific shielding requirements in nuclear facilities. This ensures concrete-optimized radiation protection while maximising structural performance and durability. To identify such differences, a combination of Raman spectroscopy, large-area imaging and mapping using scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDS) and powder X-ray diffraction (PXRD) was performed to compare Czech and Slovak serpentinite rocks which were used in the construction of local nuclear power plants, which are still in operation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

cta Geodynamica et Geomaterialia (AGG)

ISSN

1214-9705

e-ISSN

—

Svazek periodika

21

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

365-375

Kód UT WoS článku

001382747500008

EID výsledku v databázi Scopus

2-s2.0-85214111432